check in
phrasal verbcheck in (at…)
- to go to a desk in a hotel, an airport, etc. and tell an official there that you have arrived
（在旅馆、机场等）登记，报到 - Please check in at least an hour before departure.
请至少在飞机起飞前一小时办理登机手续。 - We've checked in at the hotel.
我们已经在旅馆登记入住。
- Please check in at least an hour before departure.
check something in
- to leave bags or cases with an official to be put on a plane or train
托运（行李） - We checked in our luggage and went through to the departure lounge.
我们托运行李后直接进入候机室。
- We checked in our luggage and went through to the departure lounge.